In the 1920s one self-appointed runciologist announced that
"a runcible spoon is a kind of fork
with three broad prongs or tines, one having a sharp edge,
curved like a spoon, used with pickles, etc.
Its origin is in jocose allusion to the slaughter
at the Battle of Ronceveaux, because it has a cutting edge.
~ Cecil Adams, The Straight Dope